Which of the following molecules is polar? Select one: a. C2H6 b. CO2 c. CH3OH d. CH4 e. All of the above are polar In a hydrogen bond, what is required from the donor, acceptor, and the hydrogen atom? Select one: a. That they will all be on a straight line for maximal bond strength b. That the donor and acceptor be partially positive, the hydrogen partially negative c. That the distance between the donor and acceptor is ~ 0.18 nanometer d. All of the above are correct Which of the following is NOT true? Select one: a. Water can dissolve any polar compound b. Water can dissolve any ion or any polar compound c. Water can dissolve any polar and most non-polar compounds d. Water can dissolve many charged compounds The aqueous solution with the highest pH is: Select one: a. 0.1 M HCl. b. 0.1 M acetic acid (pKa = 4.86). c. 0.1 M formic acid (pKa = 3.75). d. 0.1 M NaOH. For any weak acid is titered with half molar equivalents of a strong base, the resulting pH would be- Select one: a. 0.5 b. Ka c. -log Ka d. -log [A-] e. Can\'t tell from the information provided Which of the following correctly describes the order of bond strengths (from stronger to weaker)? Select one: a. Dispersion > ionic > hydrogen > covalent b. Ionic > covalent > dispersion > hydrogen c. Covalent > ionic > hydrogen > dispersion d. Covalent > ionic > dispersion > hydrogen e. Covalent > hydrogen > ionic > dispersion Solution Solved the first problem as per Chegg guidelines, post multiple question to get the remaining answers Which of the following molecules is polar? The correct answer is Option C (CH3OH) Reason: The dipole moment created by electronegativity difference of O-H bond doesn\'t get cancelled leading it to be a polar bond .

1. Which of the following molecules is polar?
Select one:
a. C2H6
b. CO2
c. CH3OH
d. CH4
e. All of the above are polar
In a hydrogen bond, what is required from the donor, acceptor, and the hydrogen atom?
Select one:
a. That they will all be on a straight line for maximal bond strength
b. That the donor and acceptor be partially positive, the hydrogen partially negative
c. That the distance between the donor and acceptor is ~ 0.18 nanometer
d. All of the above are correct
Which of the following is NOT true?
Select one:
a. Water can dissolve any polar compound
b. Water can dissolve any ion or any polar compound
c. Water can dissolve any polar and most non-polar compounds
d. Water can dissolve many charged compounds
The aqueous solution with the highest pH is:
Select one:
a. 0.1 M HCl.
b. 0.1 M acetic acid (pKa = 4.86).

2. c. 0.1 M formic acid (pKa = 3.75).
d. 0.1 M NaOH.
For any weak acid is titered with half molar equivalents of a strong base, the resulting pH would
be-
Select one:
a. 0.5
b. Ka
c. -log Ka
d. -log [A-]
e. Can't tell from the information provided
Which of the following correctly describes the order of bond strengths (from stronger to
weaker)?
Select one:
a. Dispersion > ionic > hydrogen > covalent
b. Ionic > covalent > dispersion > hydrogen
c. Covalent > ionic > hydrogen > dispersion
d. Covalent > ionic > dispersion > hydrogen
e. Covalent > hydrogen > ionic > dispersion
Solution

3. Solved the first problem as per Chegg guidelines, post multiple question to get the remaining
answers
Which of the following molecules is polar?
The correct answer is Option C (CH3OH)
Reason: The dipole moment created by electronegativity difference of O-H bond doesn't
get cancelled leading it to be a polar bond